Example sentences of "[coord] it [be] often difficult [verb] " in BNC.
Next page| No | Sentence |
|---|---|
| 1 | No one can predict the sales success of an ad , and it is often difficult to measure the success even afterwards . |
| 2 | Some delays are inevitable , and it is often difficult to get round them , but that is no one 's fault . |
| 3 | Membership is gained consciously or unconsciously and it is often difficult to determine the time when a person becomes a member . |
| 4 | It must be remembered that hyperlipidaemia in a well-controlled diabetic may also represent a primary familial disorder , and it is often difficult to differentiate between this and diabetes complicated by hypertriglyceridaemia . |
| 5 | They can be irritatingly slow to publish , and it is often difficult to know how they spend their time . |
| 6 | A chance finding , outside the mainstream of scientific research , can sometimes be very valuable , but it is often difficult to see its potential . |
| 7 | But it is often difficult to judge . |
| 8 | Other places were also hit savagely from time to time , but it is often difficult to tell from the registers which particular disease was responsible for an unusually high number of deaths . |
| 9 | By changing the excitation frequency we can probe the upper-state vibrational levels , but it is often difficult to identify the ν'=; 0 level , which may have low probability of excitation or emission . |
| 10 | But it 's often difficult to see for yourself how much is in your account . |